1. Now the whole world will have to believe that mankind is destined to inhabit, if not all, many planets in the solar system.2. If someone had said this fifty years ago, he would have answered that about it and think it is impossible. 3. The skeptics who said that this cannot be, we must acknowledge that we are destined to be witnesses of the interplanetary flights. 4. In order to launch the rocket into interplanetary space, scientists had to make precise calculations to know where to aim the rocket. They decided that it must go in the vicinity of the moon. 5. I believe that the Moon may be, will serve as a base for interplanetary flights. 6. Scientists think that the moon must be no atmosphere. 7. The difficulties we have to overcome in order to create a passenger interplanetary missiles, very high. But we will surely overcome them.